Electric illumination.



' I. KITSEB.

ELEGTBIG ILLUMINATION. APPLIOATION FILED FEB. 8, 1909.

1,01 7,263, -Patented Feb. 13, 1912.

ffl

lNvNToR UNITED STATES "PATENT OFFICE.

ISIDOB KITSEE, OF PHILADELPHIA, PENNSYLVANIA. y

ELEcTaIc ILLUMINATION.

Specification of Letters Patent.

, State 'of Pennsylvania, have invented certain new and useful Improvements in Electric Illumination, of which the followmg 1s a speciiication.

My invention relates to an improvement.

in electric illumination and has more special reference to electric signs representing letters or other required characters.

In the drawing, Figure 1 is a plan view illustrating an electric sign embodying my invention. Fig. 2 is a side elevation of the same. Fig. 3 is a sectional view thereof. Fig. 4. is a section on the line y y of Fig. 3; Fig. 5 is a section on the line a: of. Fig. 3. Fig. 6 is an end view of Fi 3. Fig. 7 is a plan view of the filament older. Fig. 8 is an end view of the same. Fig. 9 is a plan view of a filament holder having a modied arrangement of the filament. Fig. 10 is an end view of the same. Fig. 11 is a plan view of a filament holder showing another form of mounting. Fig. 12 is an end view of the same.

In Figs. 1, 2, 3, 4, 5 and 6; 1 is a casing formed of glass or other transparent mate-` rial which may have its surface either straight or waved as shown at 2, and this waving may be of any shape or form, either smooth or prismatic. The material will necduced by any of the well known methods in the interior of the casing 5, and on the side.

walls of this casing are the projections 6 and the longitudinal strip 7.

The lament-holdes are composed of a sheet of glass or other insulating material 8 which have notches as shown at 9 in their sides, and conductors lO'and 11 mounted upon their surface, and the filaments 12 of any desired shape or form made out of carbon or any other material are mounted between the conductors.

The filament holder is locked in position within the casing 1 through the medium of the projections 6, and to properly support said holder the notches'9 thereof are caused to register with the projections 6, and when so positioned the filament holder may be moved into contact with the strips 7, the notches 9 receiving the projections 6 during this movement. When the holder. has been Krrsnn, a citibrought into contactwith said strips 7 the holder is given a slight longitudinal movement to carry the slots outl of registry with the projections 6,' and by reason of this movement of the holder the latter is held upon said projections and strips. When .positioning the filament holder in the manner indloated, one of the filaments enters each of the bulb-like portions of the casing 1, thus giving to each of the bulb-like portions an appearance corresponding to the appearance of an individual incandescent lamp.

It is evident that when the leads 3 are sealed in, the iilament holder will be locked permanently between the projections 6 and the longitudinal strip 7. 'It is also evident that this form of illumination canbe adapted to a great many situations as Well as that of illuminated signs.

` When, as in Fig. 1, the character letter is formed in a manner so that it is impractical to provide the inner part of the tube with one continuous holder for the lilaments, then this holder may be produced in sections and the two sections either joined together so that the lead wires may form one continuous circuit, or the lead wires may be connected. to each section thereof.

In Fig. 1, the dotted lines a, a, show the termination of each of the -two sections b, 6Fl

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. A luminous sign, comprising a casing, a filament holder arranged therein, a plurality of conductors associated with said Patented Feb. 13, 1912. f IApplication led February 8, 1909. Serial No. 476,614.

holder and having line terminals at the eX- A j terior of the casing, a plurality of laments connected in parallel to said conductors, and means for locking the filament holder in po sition Within the casing.

2. A luminous sign, comprising' a casing provided with bulb-like portions in simulation of individual incandescent lamps, a ilamentholder arranged within the casing, a plurality of conductors carried by said holder and having line terminals projecting at the exterior of the casing, a plurality lof filaments connected in parallel to said conductors, one of said filaments being arranged in each of said bulb-like portions of the casing, and means for interlocking said fila,- ment holder with said casing to maintain the filaments in their respective bulb-like :portions.

3. A luminous sign, comprising a casing,

having inwardly-extending projections, a4

filament holder arranged within said casing, a plurality of conductorsassociated with said holder and having line terminals eX\ tending at the exterior of the casing, a plurality of laments connected in parallel to said conductors, and a plurality of other projections carried by the casing and separated from the rstmentioned projections, whereby the filament holder is received between said two series of projections, the lament holder having notches to receive the last-mentioned projections when saidnotches register therewith and to hold said lamentholder in assembled relation to the casingv v when the filament holder has been moved to bring said notches out of alinement with the last-mentioned projections.

4. A .luminous sign, comprising a casing having inwardly-extending projections therein, said casing also having a series of bulb-like portions to simulate individual incandescent lamps, a filament' holder aranimee ranged within said casing, a plurality of 2` conductors associated with said holder and having/line terminals at the exterior of the casing,a plurality of filaments connected in parallel to said conductors, one of said laassembledl relation, to .rsaid casing when said notches have been moved out of alinemet withsaid last-mentioned projections.

In testimon whereof ll atx my signature in presence o two witnesses.

l ISIDOR KITSEE.

Witnesses: 4 l EDITH R. Simmer, MARY'C. SMITH. 

